chuck ...

I have done Patricks Saginaw upgrade and one thing is for certain you do not have enough room for the power booster that mounts in the original location. I don't know the width of the dual master cylinder that you are talking about so can't say for sure.

Give Patrick a call and ask for him. I went down and saw him the other day and he said if anyone had any questions to give him a call. Let him know you found out information from StoveBolt ..he'll be tickled. I know for certain that he uses a remote hydrovac on his trucks with the saginaw conversion ... which is what I am going to end up using.

Let me know if I can provide you some measurements / pictures.